1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1990, 1993, 1994
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/types.h>
33#include <sys/sysctl.h>
34
35#include <stddef.h>
36
37#include "ps.h"
38
39fixpt_t	ccpu;				/* kernel _ccpu variable */
40int	nlistread;			/* if nlist already read. */
41unsigned long	mempages;		/* number of pages of phys. memory */
42int	fscale;				/* kernel _fscale variable */
43
44int
45donlist(void)
46{
47	size_t oldlen;
48
49	oldlen = sizeof(ccpu);
50	if (sysctlbyname("kern.ccpu", &ccpu, &oldlen, NULL, 0) == -1)
51		return (1);
52	oldlen = sizeof(fscale);
53	if (sysctlbyname("kern.fscale", &fscale, &oldlen, NULL, 0) == -1)
54		return (1);
55	oldlen = sizeof(mempages);
56	if (sysctlbyname("hw.availpages", &mempages, &oldlen, NULL, 0) == -1)
57		return (1);
58	nlistread = 1;
59	return (0);
60}
61